put download nltk corpora back into ci

.github/workflows/ci.yml

@@ -28,6 +28,7 @@ jobs:
         python -m pip install --upgrade pip
         python -m pip install -e .
         python -m spacy download en_core_web_md
+        python -m textblob.download_corpora
     - name: Run pytest linux (linux-only)
       if: matrix.os == 'ubuntu-22.04'
       run: |